CVE-2020-3919: Apple iPadOS

High severity, CVSS 7.8. EPSS: 1.4% chance of exploitation in the next 30 days.

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2. A malicious application may be able to execute arbitrary code with kernel privileges.

Affected products

• Apple iPadOS: before 13.4 (fixed in 13.4)
• Apple iPhone OS: before 13.4 (fixed in 13.4)
• Apple Mac OS X: before 10.15.4 (fixed in 10.15.4)
• Apple tvOS: before 13.4 (fixed in 13.4)
• Apple watchOS: before 6.2 (fixed in 6.2)

Published 2020-04-01. Last modified 2026-06-17.